NRG Energy, Inc., together with its subsidiaries, operates as an energy and home services company in the United States and Canada. It operates through Texas; East; West/Services/Other; Vivint Smart Home; and Corporate Activities segments. The company produces and sells electricity generated using coal, oil, solar, and battery storage; natural gas; and a cloud-based home platform, including hardware, software, sales, installation, customer service, technical support, and professional monitoring solutions. It offers retail electricity and energy management, line and surge protection products, HVAC installation, repair and maintenance, home protection products, carbon offsets, back-up power stations, portable power, portable solar, and portable lighting; retail services comprising demand response, commodity sales, energy efficiency, and energy management solutions; and system power, distributed generation, renewable and low-carbon products, carbon management and specialty services, backup generation, storage and distributed solar, and energy advisory services. In addition, the company trades in power, natural gas, and related commodities; environmental products; weather products; and financial products, including forwards, futures, options, and swaps. It offers its products and services under the NRG, Reliant, Direct Energy, Green Mountain Energy, and Vivint. It serves residential, commercial, government, industrial, and wholesale customers. NRG Energy, Inc. was founded in 1989 and is headquartered in Houston, Texas.

Enphase Energy, Inc., together with its subsidiaries, designs, develops, manufactures, and sells home energy solutions for the solar photovoltaic industry in the United States and internationally. The company offers semiconductor-based microinverter, which converts energy at the individual solar module level and combines with its proprietary networking and software technologies to provide energy monitoring and control. It also provides microinverter units and related accessories, an IQ gateway; IQ batteries; the cloud-based Enlighten monitoring service; storage solutions; and electric vehicle charging solutions, as well as design, proposal, permitting, and lead generation services. The company sells its solutions to solar distributors; and directly to large installers, original equipment manufacturers, strategic partners, and homeowners, as well as through its legacy product upgrade program or online store. Enphase Energy, Inc. was incorporated in 2006 and is headquartered in Fremont, California.

Sunrun Inc. designs, develops, installs, sells, owns, and maintains residential solar energy systems in the United States. It also sells solar energy systems and products, such as panels and racking; and solar leads generated to customers. In addition, the company offers battery storage along with solar energy systems; and sells services to commercial developers through multi-family and new homes. Its primary customers are residential homeowners. The company markets and sells its products through direct-to-consumer approach across online, retail, mass media, digital media, canvassing, field marketing, and referral channels, as well as its partner network. Sunrun Inc. was founded in 2007 and is headquartered in San Francisco, California.

Eos Energy Enterprises, Inc. designs, manufactures, and markets zinc-based energy storage solutions for utility-scale, microgrid, and commercial and industrial (C&I) applications in the United States. The company offers Znyth technology battery energy storage system (BESS), which provides the operating flexibility to manage increased grid complexity and price volatility. Its flagship product is Gen 2.3 battery module. In addition, the company offers Z3 battery module that provides utilities, independent power producers, renewables developers, and C&I customers with an alternative to lithium-ion and lead-acid monopolar batteries for critical 3- to 12-hour discharge duration applications; battery management system, which provides a remote asset monitoring capability and service to track the performance and health of BESS and identify future system performance issues through predictive analytics; and project management and commissioning services, as well as long-term maintenance plans. Eos Energy Enterprises, Inc. is headquartered in Edison, New Jersey.

Tigo Energy, Inc. provides solar and energy storage solutions for the solar industry. It offers module level power electronics (MLPEs) to maximize the energy output of individual solar modules. The company also provides GO Energy Storage Systems that provide solar energy storage management capabilities; and Energy Intelligence (EI) platform, which provides monitoring and energy demand forecasting capabilities. In addition, it offers GO Battery that provides energy resilience in the event of a grid outage and optimizes energy consumption based on rate plans for home energy needs; GO Inverter, which offers energy conversion for home consumption or export to the grid; GO Link/Automatic Transfer Switch (ATS), a component for battery backup of on-grid systems; and GO Electric Vehicle (EV) Charger to reduce transportation costs. The company serves residential, commercial, and utility sectors through distributors and solar installers in North and South America, Europe, the Middle East, Africa, and the Asia-Pacific regions. Tigo Energy, Inc. was founded in 2007 and is headquartered in Campbell, California.

Sunnova Energy International Inc. engages in the provision of energy as a service in the United States. The company offers electricity, as well as offers operations and maintenance, monitoring, repairs and replacements, equipment upgrades, on-site power optimization, and solar energy system and energy storage system diagnostics services. As of December 31, 2023, it operated a fleet of residential solar energy systems with a generation capacity of approximately 2,292 megawatts serving over 419,000 customers. The company was incorporated in 2012 and is headquartered in Houston, Texas.

Pineapple Energy Inc. engages in the sale, design, and installation of photovoltaic solar energy systems and battery storage systems in the United States. Its brand portfolio includes SUNation, Hawaii Energy Connection, E-Gear, Sungevity, and Horizon Solar Power. The company develops and manufactures energy management software and hardware, such as energy management control devices on solar systems that are paired with batteries. It primarily serves residential homeowners, as well as commercial owners, other municipal customers, energy services companies, and other utilities. Pineapple Energy Inc. was founded in 1969 and is based in Minnetonka, Minnesota.

SunPower Corporation, a solar technology and energy services provider, offers solar, storage, and home energy solutions primarily in the United States and Canada. Its solutions include the Equinox and SunVault systems which are pre-engineered modular solutions for residential applications that combine solar module technology with integrated plug-and-play power stations, cable management systems, and mounting hardware that enable dealers and installers to complete system installations, as well as for end customers to manage their energy production. The company also provides post-installation monitoring and maintenance services. It serves residential customers, including individual homeowners and new home builders. The company was incorporated in 1985 and is headquartered in Richmond, California. SunPower Corporation operates as a subsidiary of TotalEnergies SE.